Question about Microwave Ovens
I have a Sharp Carousel 1.5kW microwave oven with model number R-310F(W)C. The LCD dispaly on my unit recently became very dim. After check the small circuit board on the front panel, I found that the problem is caused by the LCD backlight driver which drives three surface mount LEDs. As the LED driver is inside a chip built on a small daughter card, it requires a replacement daughter card, or the entire circuit board for display and keyboard. A simple alternative solution is to cut the link between the three LEDs and their driver, then build a small circuit to drive the LEDs. I can provide the circuit diagram if interested.
Posted on Nov 17, 2010
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Posted on Jan 02, 2017
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